121311111102222 has 64 divisors (see below), whose sum is σ = 246939523891200. Its totient is φ = 39723279846624.

The previous prime is 121311111102193. The next prime is 121311111102227. The reversal of 121311111102222 is 222201111113121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311111102227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152517723 + ... + 153311049.

It is an arithmetic number, because the mean of its divisors is an integer number (3858430060800).

Almost surely, 2^{121311111102222} is an apocalyptic number.

121311111102222 is an abundant number, since it is smaller than the sum of its proper divisors (125628412788978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121311111102222 is a wasteful number, since it uses less digits than its factorization.

121311111102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795157.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 121311111102222 its reverse (222201111113121), we get a palindrome (343512222215343).

The spelling of 121311111102222 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred eleven million, one hundred two thousand, two hundred twenty-two".